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Concerted Two‐Electron Transfer and High Selectivity of TiO 2 in Photocatalyzed Deoxygenation of Epoxides
Author(s) -
Li Yue,
Ji Hongwei,
Chen Chuncheng,
Ma Wanhong,
Zhao Jincai
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201307374
Subject(s) - deoxygenation , alkene , photochemistry , photocatalysis , electron transfer , carbanion , chemistry , stereoselectivity , selectivity , electron , medicinal chemistry , catalysis , organic chemistry , physics , quantum mechanics
No two ways about it : In the photocatalytic deoxygenation of epoxides, the TiO 2 particle concertedly transfers two stored electrons to generate a carbanion intermediate, which dissociates to the alkene product. This pathway ensures the higher alkene and stereoselectivity of the photocatalytic deoxygenation than those involving a single‐electron transfer.
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